Retaining block



FIG. 1 is a perspective view of a retaining block according to my newdesign, as viewed from the front, top, and one side of the block.

FIG. 2 is a front view of the retaining block of FIG. 1.

FIG. 3 is a side view of the retaining block of FIG. 1, the oppositeside being a mirror image thereof.

FIG. 4 is rear view of the retaining block of FIG. 1.

FIG. 5 is a top plan view of the retaining block of FIG. 1; and,

FIG. 6 is a bottom plan view of the retaining block of FIG. 1.

The broken lines in the drawings that are immediately adjacent to theshaded areas represent an unclaimed boundary of the claimed design. Thebroken lines showing the remainder of the retaining block are forillustrative purposes only and form no part of the claimed design.

I claim the ornamental design for a retaining block, as shown anddescribed.